linux-kernel - Re: Regression- XFS won't mount on partitioned md array

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Date:	Fri, 16 May 2008 13:16:48 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	David Greaves <david@...eaves.com>
cc:	David Chinner <dgc@....com>,
	LinuxRaid <linux-raid@...r.kernel.org>, xfs@....sgi.com,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>
Subject: Re: Regression- XFS won't mount on partitioned md array



On Fri, 16 May 2008, David Greaves wrote:

> I just attempted a kernel upgrade from 2.6.20.7 to 2.6.25.3 and it no longer
> mounts my xfs filesystem.
>
> I bisected it to around
> a67d7c5f5d25d0b13a4dfb182697135b014fa478
> [XFS] Move platform specific mount option parse out of core XFS code
>
> I have a RAID5 array with partitions:
>
> Partition Table for /dev/md_d0
>
>               First       Last
> # Type       Sector      Sector   Offset    Length   Filesystem Type (ID) Flag
> -- ------- ----------- ----------- ------ ----------- -------------------- ----
> 1 Primary           0  2500288279      4  2500288280 Linux (83)           None
> 2 Primary  2500288280  2500483583      0      195304 Non-FS data (DA)     None
>
>
> when I attempt to mount /media:
> /dev/md_d0p1 /media xfs rw,nobarrier,noatime,logdev=/dev/md_d0p2,allocsize=512m 0 0
>
> I get:
> md_d0: p1 p2
> XFS mounting filesystem md_d0p1
> attempt to access beyond end of device
> md_d0p2: rw=0, want=195311, limit=195304
> I/O error in filesystem ("md_d0p1") meta-data dev md_d0p2 block 0x2fae7
> ("xlog_bread") error 5 buf count 512
> XFS: empty log check failed
> XFS: log mount/recovery failed: error 5
> XFS: log mount failed
>
> A repair:
>  xfs_repair /dev/md_d0p1 -l /dev/md_d0p2
> gives no errors.
>
> Phase 1 - find and verify superblock...
> Phase 2 - using external log on /dev/md_d0p2
>        - zero log...
>        - scan filesystem freespace and inode maps...
>        - found root inode chunk
> ...
>
>
> David
>
>

Ouch, still on 2.6.25.1 here, didn't reboot yet, but I do not use 
mdraid'ed partitions, just regular mdraid, if you boot back to 2.6.20.7 
does it work again?
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